Iain Freestone

⚛️ The 7 best features of React over the last 7 years

May 29, 2020

As React turns 7 these are the features that have improved my developer experience the most over that period of time.

2013 - Initial Release

For new features there needs to be tool. React was officially launched on May 29th, 2013


2014 - Developer Tools

The React Developer tools are a browser extension that enables you to easily debug your react app.

React Dev Tools


2015 - Stateless components

React 0.14 introduced the ability to create components using a simple arrow function

// A function component using an ES2015 (ES6) arrow function:
var Aquarium = (props) => {
  var fish = getFish(props.species);
  return <Tank>{fish}</Tank>;
};

React 0.14 release docs


2016 - Create React App

Introduced by Dan Abramov in July 2016 Create React App has become a game-changer when it comes to quickly scaffolding a new React App.

Create React App


2017 - React Fiber

React Fiber was the name given to the complete reworking of the React rendering algorithm that greatly improved the performance of app over the previous version

React Fiber


2018 - Lazy Loading & Suspense

Suspense lets you specify the loading indicator in case some components in the tree below it are not yet ready to render. Today, lazy loading components is the only use case supported by Suspense.

React Lazy React Suspense

2019 - Hooks

Hooks let you use state and other React features in functional components without writing a class.

Intro to Hooks


2020 - Concurrent mode

Concurrent Mode is the newest feature and is something the community has been excited about for a long time. It is a set of new features that help React apps stay responsive and gracefully adjust to the user’s device capabilities and network speed.

Into to concurrent mode